Finding the Fourth Proportional to 159,068.48, 219,518.71 and 86,476.26
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Solution
The fourth proportional to 159,068.48, 219,518.71 and 86,476.26 is: 119,339.52
Step by Step Solution
- Step 1: Write the proportion equation
159,068.48 : 219,518.71 = 86,476.26 : x - Step 2: Convert to fraction form
159,068.48/219,518.71 = 86,476.26/x - Step 3: Cross multiply
159,068.48x = 219,518.71 × 86,476.26 - Step 4: Simplify right side
159,068.48x = 18,983,156,413.04 - Step 5: Solve for x
x = 18,983,156,413.04/159,068.48 - Step 6: Final answer
x = 119,339.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.